2322130440 has 64 divisors (see below), whose sum is σ = 7961592960. Its totient is φ = 530772480.

The previous prime is 2322130381. The next prime is 2322130469. The reversal of 2322130440 is 440312232.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1381381 + ... + 1383060.

It is an arithmetic number, because the mean of its divisors is an integer number (124399890).

Almost surely, 2^2322130440 is an apocalyptic number.

2322130440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2322130440 is an abundant number, since it is smaller than the sum of its proper divisors (5639462520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2322130440 is a wasteful number, since it uses less digits than its factorization.

2322130440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764462 (or 2764458 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2322130440 is about 48188.4886669005. The cubic root of 2322130440 is about 1324.2262842549.

Adding to 2322130440 its reverse (440312232), we get a palindrome (2762442672).

The spelling of 2322130440 in words is "two billion, three hundred twenty-two million, one hundred thirty thousand, four hundred forty".